Who is Séverin in the novel, The Gilded Wolves?

Séverin is the owner of L’Eden and the leader of the main group of the novel. He is the heir to House Vanth, but was denied his Patriarch status when the Order of Babel falsified the results of his inheritance test as a child. Since then, Séverin has worked together with Laila and the others to steal back various artifacts that once belonged to House Vanth.